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In this paper, we consider several features of teacher‐retention policies based on value‐added measures of effectiveness under a variety of empirically grounded rules and parameters. We consider the effects of policy design by varying the standard above which satisfactory teachers are expected to perform. We simulate recently adopted policies that remove teachers based on consecutive unsatisfactory performance and compare these to policies that remove teachers based on poor performance on average over a multiyear period. We also consider the precision of the performance measure and the underlying variation in teacher quality on policy effects. Finally, the simulation makes a step forward by incorporating recent empirical findings of a relationship between teacher quality and natural attrition from the profession. Our results indicate that deselection policies based on value‐added measures have the potential to improve teacher quality, although understanding the role of policy design, self‐selected exits, and the underlying variation in teacher quality is essential for determining policy effects. 相似文献
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Political competition lies at the core of representative democracy. Yet, uncompetitive elections and uncontested races are widespread in the United States, particularly at the state level. In this article, we analyze the consequences of uncontested elections on lawmaking activity. Our primary hypothesis is that legislators who run unopposed are less active lawmakers than those who were selected through competitive elections. Studying roll‐call vote participation and bill introduction and enactment for most of the U.S. states for 1999–2000, we find that state legislators elected in unopposed elections perform more poorly compared to their colleagues elected in competitive contests. 相似文献
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Timothy M. Shaw 《圆桌》2013,102(2):209-210
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On February 20 M. V. dc Korostovetz read a paper on Soviet Russia and her Southern Neighbours. The subject was divided into four parts: (a) The general trend of Russia's foreign policy, which, whether Imperial or Bolshevik, has differed in method rather than aim; (b) the States from Turkey to China, lying to the south of the Soviet block, with special attention to Chinese Turkestan; (c) the Ukrainian attitude to Communism; and (d) an outline of the new canals planned to make the Volga the chief waterway of Russia at the expense of the Don, and, with the refortification of the Straits, to turn the Black Sea into a mare clausum. 相似文献